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Cheap flights from Buffalo to St. Louis (BUF - STL) from $111

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
BUF — STL
Jun 2 — Jun 91
From?
To?
Sun 6/2
Sun 6/9
1 adult, Economy
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The best prices from Buffalo to Lambert-St Louis are usually found in October or September, booked 39 days in advance, depart on a Sunday or Thursday and return on a Wednesday

Cheap flight deals from Buffalo to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 28, 2024.

Popular in

July

Cheapest in

October

Round-trip from

$319

One-way from

$140
High demand for flights, 10% potential price rise
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Best time to find cheap flights, 20% potential price drop
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From Buffalo to Lambert-St Louis
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One-way flight from Buffalo to Lambert-St Louis
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What is the cheapest day to fly round-trip from Buffalo to St. Louis?

Friday flights are found to be more expensive to fly from Buffalo to St. Louis. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St. Louis.

How far in advance should I book a flight from Buffalo to St. Louis?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 40 days in advance, which can save you up to 114% on flights from Buffalo to St. Louis compared to booking the week you need them. Waiting 40 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $248. For sooner than that we have options available in the next 3 days from $523.

What is the cheapest month to fly from Buffalo to St. Louis?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, October can be a great choice for travel to St. Louis. Flights to St. Louis from Buffalo in October are about $378 on average during October, but can be found for as low as $205.

When is the cheapest time to fly from Buffalo to St. Louis (BUF - STL)?

One of the essential ways to save on airfare from Buffalo to St. Louis is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 10% on airfare.

Cheap Frontier flights from Buffalo to St. Louis

Explore cheap flight options specifically provided by Frontier for the route between Buffalo and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
Consider these cheap Frontier flights we've found departing from Buffalo to St. Louis. It's recommended that users confirm their flight details before booking.
Wed 10/29:19 pmBUF - STL
1 stop10h 43mFrontier
Mon 10/79:20 pmSTL - BUF
1 stop12h 32mFrontier
Deal found 5/27$238
Sun 6/97:54 pmBUF - STL
1 stop22h 20mFrontier
Mon 6/1010:36 pmSTL - BUF
1 stop9h 00mFrontier
Deal found 5/27$245
Tue 7/165:54 pmBUF - STL
1 stop15h 49mFrontier
Fri 7/195:19 pmSTL - BUF
1 stop19h 15mFrontier
Deal found 5/27$253
Thu 8/111:30 amBUF - STL
1 stop22h 06mFrontier
Sun 8/412:58 pmSTL - BUF
1 stop27h 50mFrontier
Deal found 5/28$266
Thu 8/229:19 pmBUF - STL
1 stop10h 43mFrontier
Sun 8/253:53 pmSTL - BUF
1 stop23h 27mFrontier
Deal found 5/27$272
Mon 7/156:48 pmBUF - STL
1 stop20h 59mFrontier
Fri 7/195:19 pmSTL - BUF
1 stop19h 15mFrontier
Deal found 5/28$343

Cheap United Airlines flights from Buffalo to St. Louis

Explore cheap flight options specifically provided by United Airlines for the route between Buffalo and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
Have a look at some of the cheapest available United Airlines flights departing from Buffalo and landing in St. Louis. Make sure to examine the flight information before completing your reservation.
Thu 8/227:00 amBUF - STL
1 stop4h 07mUnited Airlines
Sun 8/255:20 pmSTL - BUF
2 stops15h 17mUnited Airlines
Deal found 5/27$427
Wed 10/27:00 amBUF - STL
1 stop4h 07mUnited Airlines
Mon 10/75:34 pmSTL - BUF
2 stops19h 50mUnited Airlines
Deal found 5/27$482
Thu 7/257:00 amBUF - STL
1 stop6h 17mUnited Airlines
Mon 7/293:10 pmSTL - BUF
1 stop5h 39mUnited Airlines
Deal found 5/28$487
Mon 7/1510:28 amBUF - STL
2 stops13h 09mUnited Airlines
Fri 7/195:30 pmSTL - BUF
1 stop5h 26mUnited Airlines
Deal found 5/28$576
Tue 7/166:00 amBUF - STL
2 stops9h 18mUnited Airlines
Fri 7/195:30 pmSTL - BUF
1 stop5h 26mUnited Airlines
Deal found 5/27$656
Sun 6/910:05 amBUF - STL
1 stop5h 11mUnited Airlines
Mon 6/105:31 pmSTL - BUF
2 stops15h 10mUnited Airlines
Deal found 5/27$673
Fri 6/2110:05 amBUF - STL
1 stop6h 34mUnited Airlines
Sun 6/235:31 pmSTL - BUF
1 stop5h 28mUnited Airlines
Deal found 5/27$676
Sun 6/97:00 amBUF - STL
1 stop4h 08mUnited Airlines
Mon 6/106:30 amSTL - BUF
3 stops15h 51mUnited Airlines
Deal found 5/27$762
Wed 10/26:00 amBUF - STL
2 stops10h 59mUnited Airlines
Mon 10/76:30 amSTL - BUF
2 stops16h 15mUnited Airlines
Deal found 5/27$911

Cheap Buffalo to St. Louis flights in May & June 2024

Find cheap flight options from Buffalo to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,696,634 searches. Prices were last updated on May 28, 2024.
Check out some of the best flight deals from Buffalo to St. Louis in 2024. Check back regularly for other flight deals.
Sat 6/17:02 pmBUF - STL
1 stop28h 30mFrontier
Tue 6/410:44 pmSTL - BUF
1 stop18h 08mFrontier
Deal found 5/27$214
Sun 6/97:54 pmBUF - STL
1 stop22h 20mFrontier
Mon 6/1010:36 pmSTL - BUF
1 stop9h 00mFrontier
Deal found 5/27$245
Sat 6/16:00 amBUF - STL
1 stop4h 53mAmerican Airlines
Tue 6/42:00 pmSTL - BUF
2 stops8h 32mAmerican Airlines
Deal found 5/27$608
Sat 6/111:09 amBUF - STL
2 stops9h 21mAmerican Airlines
Tue 6/42:00 pmSTL - BUF
2 stops8h 32mAmerican Airlines
Deal found 5/27$646
Sun 6/910:05 amBUF - STL
1 stop5h 11mUnited Airlines
Mon 6/105:31 pmSTL - BUF
2 stops15h 10mUnited Airlines
Deal found 5/27$673
Fri 6/2110:05 amBUF - STL
1 stop6h 34mUnited Airlines
Sun 6/235:31 pmSTL - BUF
1 stop5h 28mUnited Airlines
Deal found 5/27$676
Sun 6/97:00 amBUF - STL
1 stop4h 08mUnited Airlines
Mon 6/106:30 amSTL - BUF
3 stops15h 51mUnited Airlines
Deal found 5/27$762
Fri 6/217:15 pmBUF - STL
2 stops20h 01mUnited Airlines
Sun 6/235:31 pmSTL - BUF
1 stop5h 28mUnited Airlines
Deal found 5/27$1,074

Buffalo to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Buffalo and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
Check out some of the best flight deals from Buffalo to St. Louis in 2024. Check back regularly for other flight deals.
Sat 6/17:02 pmBUF - STL
1 stop28h 30mFrontier
Tue 6/410:44 pmSTL - BUF
1 stop18h 08mFrontier
Deal found 5/27$214
Wed 10/29:19 pmBUF - STL
1 stop10h 43mFrontier
Mon 10/79:20 pmSTL - BUF
1 stop12h 32mFrontier
Deal found 5/27$238
Sun 6/97:54 pmBUF - STL
1 stop22h 20mFrontier
Mon 6/1010:36 pmSTL - BUF
1 stop9h 00mFrontier
Deal found 5/27$245
Tue 7/165:54 pmBUF - STL
1 stop15h 49mFrontier
Fri 7/195:19 pmSTL - BUF
1 stop19h 15mFrontier
Deal found 5/27$253
Thu 8/111:30 amBUF - STL
1 stop22h 06mFrontier
Sun 8/412:58 pmSTL - BUF
1 stop27h 50mFrontier
Deal found 5/28$266
Mon 7/152:06 pmBUF - STL
1 stop23h 18mMultiple Airlines
Fri 7/195:19 pmSTL - BUF
1 stop19h 15mMultiple Airlines
Deal found 5/27$269
Thu 8/229:19 pmBUF - STL
1 stop10h 43mFrontier
Sun 8/253:53 pmSTL - BUF
1 stop23h 27mFrontier
Deal found 5/27$272
Mon 7/156:48 pmBUF - STL
1 stop20h 59mFrontier
Fri 7/195:19 pmSTL - BUF
1 stop19h 15mFrontier
Deal found 5/28$343
Thu 8/227:00 amBUF - STL
1 stop4h 07mUnited Airlines
Sun 8/255:20 pmSTL - BUF
2 stops15h 17mUnited Airlines
Deal found 5/27$427

One-way flights to St. Louis from Buffalo

Search for one-way flight options from Buffalo to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
If you're seeking multiple options on one-way flights from Buffalo to St. Louis, be sure to check out these deals, which are updated often. For those needing a return trip from Buffalo, there is a search form available above.
Thu 6/67:55 pmBUF - STL
1 stop12h 12mFrontier
Deal found 5/27$111
Tue 11/57:58 pmBUF - STL
1 stop4h 24mAmerican Airlines
Deal found 5/27$122
Mon 7/15:52 pmBUF - STL
1 stop21h 55mFrontier
Deal found 5/27$126
Sat 10/195:51 pmBUF - STL
1 stop6h 29mAmerican Airlines
Deal found 5/27$137
Sun 6/97:54 pmBUF - STL
1 stop22h 20mFrontier
Deal found 5/27$140
Sun 10/66:50 pmBUF - STL
1 stop5h 45mDelta
Deal found 5/27$153
Sun 10/66:22 pmBUF - STL
1 stop4h 47mAmerican Airlines
Deal found 5/27$154
Mon 7/111:46 amBUF - STL
3 stops27h 37mMultiple Airlines
Deal found 5/27$210
Sat 10/197:55 pmBUF - STL
2 stops15h 12mUnited Airlines
Deal found 5/27$264

Find flights from Buffalo to St. Louis within your budget

Customize your flight search to find flights from Buffalo to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$238 - $594

Route

Depart

Return

Price

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Wed 10/2

1 stop10h 43m

Lambert-St Louis

Mon 10/7

1 stop12h 32m

$238

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Sun 6/9

1 stop22h 20m

Lambert-St Louis

Mon 6/10

1 stop9h 00m

$245

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Tue 7/16

1 stop15h 49m

Lambert-St Louis

Fri 7/19

1 stop19h 15m

$253

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Thu 8/1

1 stop22h 06m

Lambert-St Louis

Sun 8/4

1 stop27h 50m

$266

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Mon 7/15

1 stop23h 18m

Lambert-St Louis

Fri 7/19

1 stop19h 15m

$269

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Thu 8/22

1 stop10h 43m

Lambert-St Louis

Sun 8/25

1 stop23h 27m

$272

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Thu 8/22

1 stop4h 07m

Lambert-St Louis

Sun 8/25

2 stops15h 17m

$427

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Wed 10/2

1 stop4h 07m

Lambert-St Louis

Mon 10/7

2 stops19h 50m

$482

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Thu 8/1

2 stops13h 01m

Lambert-St Louis

Sun 8/4

1 stop5h 15m

$594

Flights are sorted by cheapest first

Deals found on 5/27

When is the best time to book a flight from Buffalo to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to St. Louis. Price data was last updated on May 24, 2024.
The best time to book flights from Buffalo to St. Louis is 39 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from Buffalo to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Buffalo to St. Louis. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Buffalo to St. Louis flight should consider departing on Thursday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Buffalo to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Buffalo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated May 28, 2024.
Read through reviews of airlines operating flights from Buffalo to St. Louis, such as Frontier, United Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,476 reviews
Check prices

Crew

8.6

Boarding

8.2

Food

7.4

Entertainment

8.0

Comfort

7.9

Overall

8.0

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

Delta
8.0
Very good
10,476 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Crew

8.6

Boarding

8.2

Food

7.4

Entertainment

8.0

Comfort

7.9

Overall

8.0

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

United Airlines
7.4
Good
10,799 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Crew

8.6

Boarding

8.2

Food

7.4

Entertainment

8.0

Comfort

7.9

Overall

8.0

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

American Airlines
7.3
Good
14,316 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Crew

8.6

Boarding

8.2

Food

7.4

Entertainment

8.0

Comfort

7.9

Overall

8.0

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

Frontier
6.3
Okay
4,016 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Crew

8.6

Boarding

8.2

Food

7.4

Entertainment

8.0

Comfort

7.9

Overall

8.0

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

Related info for your journey

Find useful and relevant information for your journey from Buffalo to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Buffalo to St. Louis for under $300 on Cheapflights?

    Yes, there are multiple flights from Buffalo to St. Louis for under $300. The cheapest flight booked recently is on Frontier for just $238, but on average you can expect to pay $607.

  • What are the cheapest airlines flying from Buffalo to St. Louis round-trip?

    Our cheapest airline available from Buffalo to St. Louis is Frontier. Our recent data shows that you can find tickets from as low as $238 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $427 and $594 round-trip. Frontier is currently priced 36% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Buffalo to St. Louis one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $111. American Airlines flights start at $122 while deals on Delta start at $153 one-way.

  • What does BUF to STL mean?

    This is defined as Buffalo Airport (BUF) and Lambert-St Louis Airport (STL). Codes like Lambert-St Louis Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Buffalo to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your Buffalo to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Buffalo to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Buffalo to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Buffalo to St. Louis that include hotel bookings?

    Yes. In addition to deals on Buffalo to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to St. Louis.

  • Can I find deals for business class flights from Buffalo to St. Louis?

    Yes. Cheapflights offers flight deals from Buffalo to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Buffalo to St. Louis that allow pets onboard?

    Many airlines flying from Buffalo to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Buffalo to St. Louis?

    Yes, you can often find last-minute deals on Buffalo to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Buffalo to St. Louis flight deals updated?

    The Buffalo to St. Louis flight deals you see on this page were last updated on 5/28.

  • What are the most popular airlines that fly from Buffalo to St. Louis?

    Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from Buffalo to St. Louis.

  • When is the best time to book a flight from Buffalo to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Buffalo to St. Louis (average of $319). Flying from Buffalo to St. Louis in July is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Buffalo to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

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Top 4 airlines flying from Buffalo to St. Louis

Discover the top 4 airlines that operate flights from Buffalo to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$121Average$236FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapest$258Average$355FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$272Average$384FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$336Average$421FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from Buffalo to St. Louis by cabin class

Find flights from Buffalo to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Buffalo to St. Louis?

Deals for Buffalo to St. Louis flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Buffalo to St. Louis?

Cheapflights simply makes it quick and affordable to book flights from Buffalo to St. Louis by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Buffalo to St. Louis with no change fees?

Certainly. Search results for flights to St. Louis from Buffalo shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Buffalo to St. Louis become cheaper?

Yes! Start tracking prices for Buffalo to St. Louis flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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